ACR AC Portal

Home Osteomyelitis or Septic Arthritis-Child (Excluding Axial Skeleton)

Variants

Child. With one or more clinical signs concerning for septic arthritis. Initial radiographs normal or demonstrating possible joint effusion. Next imaging study.

Documents

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Septic arthritis suspected, knee, radiography normal, next imaging study

3195103

US knee

0 mSv
O

0 mSv [ped]
O

Usually appropriate

Image-guided aspiration knee

Varies

Usually appropriate

MRI knee without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

MRI knee without IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI lower extremity without and with IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI lower extremity without IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

Bone scan whole body and 3-phase bone scan knee

3-10 mSv [ped]
☢☢☢☢

Usually not appropriate

MRI whole body without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI whole body without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT knee with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT knee without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT knee without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

3-phase bone scan knee

1-10 mSv
☢☢☢

Usually not appropriate

Bone scan whole body

1-10 mSv
☢☢☢

3-10 mSv [ped]
☢☢☢☢

Usually not appropriate